Plant Growth and Development Questions

The chemical nature of kinetin is

Parthenocarpy can be induced by

Minerals known to be required in large amounts for plant growth include :-

Fruit and leaf drop at early stages can be prevented by the application of :

The avena curvature is used for bioassay of:

Dr. F. Went noted that if coleoptile tips were removed and placed on agar for one hour, the agar would produce a bending when placed on one side of freshly cut coleoptile stumps. Of what significance ...

Which one of the following growth regulators is known as ′stress hormone′ ?

The correct process of phytochrome conversion is

During seed germination its stored food is mobilized by :

Which one of the following generally acts as an antagonist to gibberellins ?

Through their effect on plant growth regulators, what do the temperature and light control in the plants?

Matuation can be induce with

Phototropic curvatute is the result of uneven distribution of

Photoperiodism was characterised in

Which of the following wavelength is most effective for the photomorphogenetic phenomenon :-

The stimuli of photoperiodism in plants is percepted by :-

In water logged condition production of which growth regulator occurs in plants :-

The form of phytochrome considerd as the physiologically active form is :-

Application of which of the following hormone delays senescence in detached leaves :-

In some flowering plants, the requirement of long day length or low temperature treatment for flowering can be effectively substituted by :-